Bone bulge behind the ear

What is the bony protrusion behind the ear? With the development of the economy, people are paying more and more attention to their physical health. Having a healthy body is the top priority in life. After all, only with a good body can one live and work better. The bulge behind the ear is generally a subcutaneous cyst. The editor will show you the symptoms of subcutaneous cyst.

It can occur at any age , but is more common in young people on the head, face, arms, and back. It is a soft or multiple soft or solid spheres with a diameter ranging from 1 to 3 cm. Pyroma is buried in the skin or subcutaneous tissue, adhered to the skin, and has a movable base. Small openings can be seen on the skin surface. When the cyst is pushed, it is tightly attached to the skin and slightly sunken with a small pit, which is the opening of the duct where the gland directly reaches the skin surface. Some openings are plugged with a small black acne-like plug from which white waxy substances can be squeezed out. The disease may occur for many years without symptoms, and is prone to secondary infection, suppuration and ulceration, and some may have a very bad smell. Literature reports of canceration, most of which turn into basal cell carcinoma and a few turn into squamous cell carcinoma, with a canceration rate of approximately 2.2% to 4%.

symptom

(1) Epidermal cyst: It is a cyst containing keratin in the dermis. It is caused by the epidermis being implanted under the skin due to trauma. The cyst wall is an epithelial structure, but the basal cell layer is the outer layer of the cyst wall. The stratum corneum is the inner layer of the cyst wall and is filled with keratin in the cavity.

This disease often occurs on the scalp, neck, buttocks and back. Single or multiple, with diameters ranging from several millimeters to several centimeters, slowly enlarging, soft or hard in texture with a cystic feel, a movable base, and often adhesion to the skin. There are no small openings like sebaceous cysts on the skin surface, and there is no pain. Only when it occurs in the pressure-bearing area will there be compressive pain. It may be accompanied by secondary infection, and according to records, there is a possibility of malignant transformation.

(2) Dermoid cyst: It is often a congenital lesion that occurs due to epithelial remnants from the embryonic period. It is a hamartoma composed of skin cells that have deviated from their original position. In addition to the epidermal cells of the cyst wall, it also contains sweat glands, hair follicles and sebaceous glands. The cavity contains desquamated epithelial cells, sebum and other porridge-like substances and hair.

Most of them are localized cystic tumors, which are discovered in childhood and adolescence. They grow slowly and are small in size. They are soft, round or hard cystic masses. It is located under the skin, has no adhesion to the skin, but is very tightly adhered to the basal tissue and is not easy to push. It is common around the eye sockets, root of the nose, occipital area and floor of the mouth, followed by the limbs. It can also occur on the chest and back. Long-term growth may lead to cancer.

(3) Psorphyria is caused by sebum accumulation due to occlusion or stenosis of the sebaceous gland duct. The cavity wall is composed of epithelial cells without keratinization, and the outside of the capsule is fibrous connective tissue. It is filled with sebum, which gradually breaks down into a semi-fluid substance containing a large amount of cholesterol crystals. . .